What's in the box:

1 X Professional Mini Pen-Type High Precision with Removing Automatic Correction Waterproof Acidity Meter Portable pH Meter Water Quality Analysis Device (Standard), Standard

The pen pH meter is professional and ideal tool for testing pH of your water level. Suitable for aquarium pool and environment water.

Features:
Use to measure the pH level and temperature of solution.
Waterproof IP65 and replaceable sensor probe.
Automatic calibration function.
Apply in water sources, aquarium, hydroponics, spas, swimming pools and other water systems.
Very wide variety of applications, used for testing the acidity and alkaline levels of almost any liquid.
Compact and portable pen-type design.
Auto shut off.
Easy to use and provides instant display of results.

Specifications:
Range: 0.00 ~ 14.00pH
Resolution: 0.01pH; 0.1C (0.2F)
Accuracy: 0.1pH ; 1.0C
Operating Temperature: 0? ~ 50? (32F ~ 122F)
Temperature Compensation: 0C ~ 50C (32F ~ 122F)
Battery: 41.5V (AG-13) Button Cell Battery (not included)
Color: Yellow
Material: ABS
Item Size: 18.8 * 3.5 * 3.5cm / 7.4 * 1.4 * 1.4in
Item Weight: 73.7g / 2.6oz
Package Size: 21 * 10.4 * 5cm / 8.3 * 4.1 * 1.9in
Package Weight: 160g / 5.6oz

Package List:
1 * pH Meter (Battery is not included)
1 * User Manual